如何排序多个变量的水平？答案

【问题标题】：How to order the level of multiple variables?如何排序多个变量的水平？
【发布时间】：2022-11-23 18:50:05
【问题描述】：

我有一个这样的数据集：

Sex	q1	q...	q10
Male	Agree	Strongly agree	Strongly disagree
Female	Desagree	Agree	Disagree
Male	Agree	Strongly agree	Disagree
Female	Desagree	Agree	Strongly disagree

我一直在这样做：

df$q1 <- factor(df$q1, levels = c("Strongly disagree", "Disagree", "Agree", "Strongly agree"))
df$q2 <- factor(df$q2, levels = c("Strongly disagree", "Disagree", "Agree", "Strongly agree"))
df$qn <- factor(df$qn, levels = c("Strongly disagree", "Disagree", "Agree", "Strongly agree"))

所以我正在寻找一种聪明的方法来将这些级别排序到我数据集的所有 q1:qn 子集。

【问题讨论】：

标签： r sorting factors

【解决方案1】：

使用dplyr::across()：

df %>%
  mutate(across(
    q1:qn, 
    factor,
    levels = c("Strongly disagree", "Disagree", "Agree", "Strongly agree")
  ))

【讨论】：